ICSE for Class 7 Physics Syllabus 2018-2022 Examination - Free PDF Download
FAQs on ICSE Syllabus for Class 7 Physics
1. How to measure the area of irregular solids according to ICSE for Class 7 Physics Syllabus 2023-24 Examination - Free PDF Download?
It is the quantity of space that exists in the form of a shape. It is always measured in square quantities, like square inches, square feet, and so forth. Area Determination: It is determined by the object's basic shape. Area can be determined as the product of length (l) and width (w) in the case of a rectangle (w). The area of irregular forms is determined by dividing the entire area into smaller shapes so that we can calculate the area using a formula and then adding up all of the areas of the shapes. To learn more, click here.
2. What is meant by resultant force according to ICSE for Class 7 Physics Syllabus 2023-24 Examination - Free PDF Download?
The resultant force is the total force applied on the item. The resultant force is 0 if the forces are balanced. An object's change in motion is determined by:
The magnitude of the force generated as a result
The resultant force's directionThe change in the object's velocity or movement is proportional to the magnitude of the resultant force. The direction of the resultant force determines whether a moving object accelerates or slows down. If the resultant force operates in the direction of movement, the object accelerates. If the resultant force operates in the opposite direction of movement, the object slows down.
3. How is balanced force described in ICSE for Class 7 Physics Syllabus 2023-24 Examination - Free PDF Download?
Two equal-sized forces acting in opposite directions on the same object are referred to as balance forces. When an object is subjected to a balanced force, the thing remains still. The following are examples of balanced forces:
Hanging Object: It can be claimed that the forces pulling down and up are balanced. For example, a hanging glass bulb shade.
Floating Object: When the weight of an object is balanced by the upthrust of the water, it floats. For example, a log floats in a pool, or a boat floats in the sea.
Standing/Sitting on a Surface: When an object rests on a surface, such as the ground, the ground's reaction force balances the weight of the object. The thing is pushed up against the earth.
4. Explain the law of conservation of energy with an example
Energy can neither be created nor destroyed, according to the rule of conservation of energy, which maintains that energy can only be converted from one type of energy to another. The energy flow is maintained in this way, but the overall energy remains the same. This means that unless the system is acted upon from the outside, there is always the same quantity of energy in the system. Energy conservation examples include:
Driving automobile: Consider a car that has been filled with fuel and is acting as a closed system in which subsequent events are occurring one by one. After the gas is burned, the chemical energy held in the gas is converted to heat energy, and the fuel causes the gas to expand, pushing up the piston in the engine cylinders. This is the step in the process where heat is turned into mechanical energy.
5. What is Sunlight?
Every color in VIBGYOR is separated into a spectrum of colors, much like a rainbow. The visible light spectrum is made up of the range of all seven colors. Sunlight is made up of seven different colors. And the white light is made up of these seven colors. Color is found in light that shines on an object's surface and is reflected or transmitted to our sensitive eyes. Pigments are substances that have the power of selectively absorbing one or more frequencies of white light. Primary colors of light are any three colors or frequencies of light that, when blended together with the proper intensity, form white light. You can access the Vedantu app and website for free study materials.